<<
  one,
  two
>>

one = <<
  two,
  three
>>

one <<
  two,
  three
>>

one two, <<
  three,
  four
>>

one <<
      two
    >>,
    <<
      three
    >>

def stab do
  <<
    one,
    two
  >>

  one = <<
    two,
    three
  >>

  one <<
    two,
    three
  >>

  one two, <<
    three,
    four
  >>

  one <<
        two
      >>,
      <<
        three
      >>
end
